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Finding the Fourth Proportional to 356,303.28, 534,473.24 and 90,066.05

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Solution

The fourth proportional to 356,303.28, 534,473.24 and 90,066.05 is: 135,103.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,303.28 : 534,473.24 = 90,066.05 : x
  2. Step 2: Convert to fraction form
    356,303.28/534,473.24 = 90,066.05/x
  3. Step 3: Cross multiply
    356,303.28x = 534,473.24 × 90,066.05
  4. Step 4: Simplify right side
    356,303.28x = 48,137,890,434.81
  5. Step 5: Solve for x
    x = 48,137,890,434.81/356,303.28
  6. Step 6: Final answer
    x = 135,103.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.